GB7303-2018

Feed additive—L-Ascorbic acid （Vitamin C）

饲料添加剂 L-抗坏血酸（维生素C）

GB 7303-2018 é uma norma nacional chinesa obrigatória vigente: Feed additive—L-Ascorbic acid （Vitamin C）. Setor: Alimentos. Foco: Segurança de produtos. Entrada em vigor: 1 de jan. de 2020.

A aplicabilidade depende do escopo do produto, da via de certificação, dos avisos da autoridade competente e das regras de transição. Solicite uma tradução ou verifique a fonte antes de usar este registro em uma decisão de conformidade.

Visão geral de conformidade

Esta visão geral está disponível por enquanto apenas em inglês.

Escopo e aplicabilidade

This standard applies to feed additive L-Ascorbic acid (Vitamin C) produced via fermentation of D-sorbitol followed by chemical synthesis. It specifies the requirements, testing methods, and labeling for this specific product. It is mandatory for all manufacturers producing Vitamin C feed additives in China. The standard replaces the previous version GB/T 7303-2006.

Requisitos técnicos

The standard outlines the physical and chemical requirements for L-Ascorbic acid (Vitamin C). The product must appear as white to slightly yellow crystals or crystalline powder, odorless with an acid taste. Manufacturers must ensure the content of L-Ascorbic acid falls within the specified percentage range. Key technical parameters include melting point, specific rotation, and ignition residue. Furthermore, the standard sets strict safety limits for heavy metals (as Pb) and total arsenic (as As) to ensure feed safety. The shelf life for unopened original packaging under specified storage conditions is defined as 24 months.

Métodos de ensaio

Testing procedures involve sensory inspection and specific chemical identification methods using reagents like silver nitrate and 2,6-dichloroindophenol sodium. The content of L-Ascorbic acid is determined through an iodometric titration method. Other testing methods include the determination of melting point according to GB/T 617, specific rotation according to GB/T 613, and the measurement of heavy metals and total arsenic following their respective national standards. Accurate execution of these testing methods is crucial for compliance verification.

Perguntas frequentes

What products are regulated under GB 7303-2018?

GB 7303-2018 regulates feed additive L-Ascorbic acid (Vitamin C) synthesized from D-sorbitol.

Are there any updates from the previous version of GB 7303?

Yes, compared to GB/T 7303-2006, the updated standard adjusts the content range of L-Ascorbic acid, changes the heavy metal limit to a specific lead limit, adds a total arsenic requirement, and extends the shelf life to 24 months.

Is GB 7303-2018 a mandatory standard?

Yes, Chapters 1, 4, and 6 of this standard are mandatory, while the remaining chapters are recommended.

The summary above provides a high-level overview of GB 7303-2018. To ensure complete compliance for your feed additive products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 7303-2018 today to access all detailed parameters, tables, and testing procedures.

Indicações de aplicabilidade

Tipo: Produto
CCS: B46
ICS: 65.120
Órgão competente: Ministry of Agriculture and Rural Affairs
Comitê técnico: Ministry of Agriculture and Rural Affairs

Relações

Substitui:GB/T 7303-2006